taylor, it is my opinion that you need to replace the battery. Not sure what difficulties you had charging it "for a long time" but I do believe that your battery is at the end of its lifespan. Once your battery is discharge below a certain threshold, your device will be no longer recognized and no longer accept a charge. So start with the battery and go from there. Do a hard reset once it is installed and trouble shoot from there. Good Luck and let us know what you accomplished.